How do I do the work for these questions to get the answers shown

For all problems, assume that the density of fresh water is 1000 ke m3 1. 1. A diver dives into a swimming pool and descends to a maximum depth of 3.0 m. What is the pressure on the diver due to the water at this depth? Give your answer in both pascals (Pa) and in bar. Answer: 29 400 Pa or 0.29 bar 2. The specifications for the wet/dry vacuum cleaner that Mr. Bigler used for his hovercraft state that it is capable of creating enough of a pressure difference to lift a column of water to a height of 1.5 m at 20"C. How much pressure can the vacuum cleaner apply? Answer: 14700 Pa 3. A standard water tower is 40 m above the ground. What is the resulting water pressure at ground level? Express your answer in pascals, bar, and pounds per square inch. (1 bar = 14.5 psi) Answer: 392 000 Pa, 3.92 bar, or 56.8 psi